API 7-1 Oriented Bent Sub, Crossover/Lifting Bail/Circulation Sub

• Customization: Available
• After-sales Service: Provide
• Warranty: 1 Year
• Model NO.: DWT89-DWT241
• Manufacturing Process: CNC Milling
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• OEM: Provide
• Others: API and ISO
• Color: Any
• Transport Package: Wooden Case
• Specification: DWT89
• Trademark: KAIDI
• Origin: China
• HS Code: 8431431000

Product Description

The oriented bent sub is a major power deflection tool having a fixed angle deviated from the low end thread of the bent sub to the axial line of drill stem. Under the application of oriented bent sub the power drill tool give the bit a constant lateral force to ensure that the bit can cut on the well wall laterally and further drill into a curved well trace.

Operation method
 After the bit and oriented sub are connected and screwed, measuring of the angle between the nozzle of bit and oriented key of oriented bent sub shall be done;

After run in drill tool, calculate out the azimuth of nozzle of bit according to the azimuth of oriented key determined at a single point by drift indicator;

 Change the nozzle of the bit into required azimuth, then lock in rotary and start pump drilling to cut in;

 During deflecting, using this approach that deflects while lightly pressing and crowning the drill to help deflection;

 After deflected for 2 to 3 meters, drill in 4 to 5 meters with light pressure and slow rotation;

 Repeat above mentioned operations for several times, when the angle of deviation is up to the expected requirement deflecting in can be done smoothly by reducing drill pressure and increasing rotation speed.

Oriented Bent Sub UBHO sub(orientation sub)
Model	O.D. mm	Connection		Bending angle (degrees)	Oriented Sleeve I.D. mm	Length mm	Weight kg	Oriented  Key Weight kg
		Female	Male
DWT89	89	NC26	NC26	1.5	36	500	15	5
DWT121	121	NC38	NC38		36	650	38	5
DWT127	127	NC38	NC38		36	650	43	7
DWT140	140	NC38	NC38	2	36	650	55	7
DWT159	159	NC46	NC46	0.5-3.5	50	650	70	7
DWT165	165	NC50	NC50		50	650	72	7
DWT178	178	5 1/2 FH	5 1/2 FH		50	700	94	7
DWT203	203	6 5/8REG	6 5/8REG		50	700	127	8
DWT241	241	7 5/8REG	7 5/8REG		50	750	193	8

Oriented Straight Sub UBHO sub(orientation sub)
Model	mm	Connection		I.  D. of Oriented Sleeve mm	Length mm	Weight kg	Oriented  Key Weight kg
		Female	Male
DWT89	89	NC26	NC26	36	500	15	5
DWT121	121	NC38	NC38	36	650	38	5
DWT127	127	NC38	NC38	36	650	43	7
DWT140	140	NC38	NC38	36	650	55	7
DWT159	159	NC46	NC46	50	650	70	7
DWT165	165	NC50	NC50	50	650	72	7
DWT178	178	5 1/2 FH	5 1/2 FH	50	700	94	7
DWT203	203	6 5/8REG	6 5/8REG	50	700	127	8
DWT241	241	7 5/8REG	7 5/8REG	50	750	193	8